{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "195218",
    "entityType": "User",
    "nonce": "0x04688bde23ffa6b34ca2087a5cce35362992e5efa034b867a6628210f5829c3b",
    "signature": "0x4af451d9d389673e6b5b72749e5356d02b63627897d59a12d50eb569806013944dfa116d235da1b3bf61b1f2cc95ad8ca03f6834cd5d82fe586ee0190802a6b91b",
    "signer": "0x367680E9B4EfE77a6636091FA6c2c71749Cf7C60",
    "userId": "40274"
  }
}